DescriptionA quadtree is a representation format used to encode images. The fundamental idea behind the quadtree is that any image can be split into f...
分类：
其他好文 时间：
2015-03-09 20:48:49
阅读次数：
221
使用下面的命令，可以分析下是否在被CC攻击。第一条命令：tcpdump -s0 -A -n -i any | grep -o -E '(GET|POST|HEAD) .*'正常的输出结果类似于这样POST /ajax/validator.php HTTP/1.1POST /api_redirect....
分类：
其他好文 时间：
2015-03-09 16:10:15
阅读次数：
153
Alice lives in the country where people like to make friends. The friendship is bidirectional and if any two person have no less than
k friends in common, they will become friends in several days. Cu...
分类：
其他好文 时间：
2015-03-09 09:24:37
阅读次数：
199
An AVL tree is a self-balancing binary search tree. In an AVL tree, the heights of the two child subtrees of any node differ by at most one; if at any...
分类：
其他好文 时间：
2015-03-08 21:23:08
阅读次数：
173
Substring
Given
a set of pattern strings, and a text, you have to find, if any of the pattern is a substring of the text. If any of the pattern string can be found in text, then print “yes”, othe...
分类：
其他好文 时间：
2015-03-08 15:45:57
阅读次数：
225
A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).
The robot can only move either down or right at any point in time. The robot is trying to reach the ...
分类：
其他好文 时间：
2015-03-08 15:45:00
阅读次数：
136
For any 4-digit integer except the ones with all the digits being the same, if we sort the digits in non-increasing order first, and then in non-decreasing order, a new number can be obtained by takin...
分类：
其他好文 时间：
2015-03-07 17:11:22
阅读次数：
124
欢迎大家阅读参考，如有错误或疑问请留言纠正，谢谢
Populating Next Right Pointers in Each Node II
Follow up for problem "Populating Next Right Pointers in Each Node".
What if the given tree could be any binary tree...
分类：
其他好文 时间：
2015-03-07 14:13:22
阅读次数：
144
TR133919中给出GAA的架构
其中，GBA包括HTTP Digest, Pre-Shared Key TLS, IKE with pre-shared secret and a priori any mechanism based on username...
分类：
其他好文 时间：
2015-03-07 11:41:00
阅读次数：
244
After the past few years I found that the only manageable way for creating/maintaining view (or any UI element in more general) is to instantiate the ...
分类：
移动开发 时间：
2015-03-07 00:54:17
阅读次数：
325
